646274020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1187}}^1\times {\mathrm{3889}}^1$

素因数の和:5092

約数の個数: 48

約数和(自身を含む): 1552763520

約数和(自身を除く): 906489500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1187, 2374, 3889, 4748, 5935, 7778, 8309, 11870, 15556, 16618, 19445, 23740, 27223, 33236, 38890, 41545, 54446, 77780, 83090, 108892, 136115, 166180, 272230, 544460, 4616243, 9232486, 18464972, 23081215, 32313701, 46162430, 64627402, 92324860, 129254804, 161568505, 323137010, 646274020]

約数ペア:

[(1, 646274020), (2, 323137010), (4, 161568505), (5, 129254804), (7, 92324860), (10, 64627402), (14, 46162430), (20, 32313701), (28, 23081215), (35, 18464972), (70, 9232486), (140, 4616243), (1187, 544460), (2374, 272230), (3889, 166180), (4748, 136115), (5935, 108892), (7778, 83090), (8309, 77780), (11870, 54446), (15556, 41545), (16618, 38890), (19445, 33236), (23740, 27223)]